Document Type and Number:
Japanese Patent JPS5037573
Kind Code:
B1
Application Number:
JP6232770A
Publication Date:
December 03, 1975
Filing Date:
July 16, 1970
Export Citation:
International Classes:
G09B7/07; G09B7/073; H04N7/18; (IPC1-7): G09B7/073; H04N7/18
Domestic Patent References:
| JPS4936645A | 1974-04-05 |